To the next blank line below the “[security]” section add “DisallowTCP=false” To the next blank line below the “[xdmcp]” section add “Enable=true” Make sure you are in a position to either run “gdm-restart” for default Gnome installs or just reboot the CentOS box. Next, as root edit the file “/etc/gdm/custom.

Unlike a remote X connection, the xserver is running on the remote computer, not on your local workstation. VNC is used to display an X windows session running on another computer. Your workstation ( Linux or Windows ) is only displaying a copy of the display ( real or virtual ) that is running on the remote machine.

VNC is used to display an X windows session running on another computer. Unlike a remote X connection, the xserver is running on the remote computer, not on your.

It is a remote framebuffer (RFB) protocol. VNC (Virtual Network Computing) is a very useful network graphics protocol (applications running on one computer but displaying their windows on another) in the spirit of X, however, unlike X, the viewing-end is very simple and maintains no state.